CN103662958B - Paper processing apparatus, image formation system and the folding method of enhancing paper bundle - Google Patents
Paper processing apparatus, image formation system and the folding method of enhancing paper bundle Download PDFInfo
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- CN103662958B CN103662958B CN201310421942.2A CN201310421942A CN103662958B CN 103662958 B CN103662958 B CN 103662958B CN 201310421942 A CN201310421942 A CN 201310421942A CN 103662958 B CN103662958 B CN 103662958B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
- B31F1/0035—Straightening or flattening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
- B65H37/06—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for folding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/02—Folding limp material without application of pressure to define or form crease lines
- B65H45/04—Folding sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/18—Oscillating or reciprocating blade folders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/512—Changing form of handled material
- B65H2301/5123—Compressing, i.e. diminishing thickness
- B65H2301/51232—Compressing, i.e. diminishing thickness for flattening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/13—Parts concerned of the handled material
- B65H2701/132—Side portions
- B65H2701/1321—Side portions of folded article or web
- B65H2701/13212—Fold, spine portion of folded article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/24—Post -processing devices
- B65H2801/27—Devices located downstream of office-type machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
- B65H37/04—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for securing together articles or webs, e.g. by adhesive, stitching or stapling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
The present invention relates to paper processing apparatus, image formation system and the folding method of enhancing paper bundle. Paper processing apparatus comprises: folding unit, its folded sheet bundle; Presser unit, it is along the folded part of the paper bundle of the folded units folded of paper bundle thickness direction pressurization, to strengthen the folding of folded part; And mobile unit, it makes presser unit advance and return along paper beam width direction. Presser unit starts pressurization along paper beam width direction during propelling is mobile from precalculated position, and after paper Shu Yiduan, is discharging pressurization. Presser unit starts to pressurize from precalculated position and passes through the paper bundle other end during returning to movement.
Description
The cross reference of related application
The application requires the priority of the Japanese patent application No. 2012-204755 submitting on September 18th, 2012,And its full content is incorporated to by reference.
Background of invention
1. invention field
The present invention relates to paper processing apparatus, image formation system and the folding method of enhancing paper bundle, particularlyRelate to paper processing apparatus, it comprises folding processing unit, for folding of sheet recording medium, as paper, recordPaper or transfer paper (being hereinafter called " paper " at this description for short); Image formation system, it comprises paper placeReason equipment; With the folding method of enhancing paper bundle, it implements in paper processing apparatus.
2. association area is described
Several conventional equipment for after-treatments and image forming apparatus, as duplicator applied in any combination, are produced and are ridden as followsHorse is ordered book (saddle-stitchedbooklets): the paper middle body of bookbinding one or more paper, andUtilization is parallel to the folding roller pair that paper folding direction is installed, the middle body of folded sheet bundle. By using along volumeRoller that sub-dorsal part moves strengthens that paper bundle is folding and the folding technology of sharpening saddle stitching book is also known.
In the folding technology of this enhancing, outside book, the folding enhancing roller of preparation is placed in book (paper bundle)Dorsal part (folded part) upper, strengthens folding of book dorsal part by roller; But book end can be thisDamaged in situation. Further, in the time that roller moves to the other end from book dorsal part one end, roller moves corresponding to shapeBecome the distance of the paper width of book; Therefore, curl accumulation, wrinkle or analogue are easily occurred.
As the technology of processing this problem, for example, Japanese Patent Publication proposes such paper No. 2009-1428Equipment for after-treatment: it can be folding with adequate pressure sharpening, and near folded part or its, do not produce curling orWrinkle.
The invention that No. 2009-1428th, Japanese Patent Publication comprises saddle stitching unit, for binding the central authorities of paper bundlePart; Central authorities' folding unit, for forming folding by folding middle body; The first and second rollers, for logicalCross along folding direction and move and pressurize the paper bundle carried from central folding unit and sharpening is folding, wherein paper simultaneouslyFolding being inserted between roller of bundle; And driver element, for making the first and second rollers from the preparation away from paper bundle endMove along folding direction position. The first roller and second roller are separated from one another in ready position, and folding at paper bundleRegion is closer to each other, is inserted between it so that folding.
That is to say, Japanese Patent Publication discloses such structure No. 2009-1428: wherein when the paper bundle back of the bodyWhen side (folded part) is folding to being enhanced by roller, folder district is released in the non-existent position of paper bundle, andAnd paper bundle is sandwiched in the position that paper bundle exists, thereby reduce the damage to paper bundle (paper bundle) end.
But, because paper bundle is strengthened foldingly from paper Shu Yiduan to the other end without ending, will cause wrinkleOr curling of analogue accumulated, this can cause producing curling or wrinkle near folded part or its.
Given this, need to be enhanced when folding and suppress attached at folded part or its owing to curling accumulation at paper bundleThe nearly curling or wrinkle that produce, and do not damage paper bundle end.
Summary of the invention
The object of the invention is to solve at least partly the problem in routine techniques.
Paper processing apparatus comprises: folding unit, its folded sheet bundle; Presser unit, it is along paper Shu HouduThe folded part of the paper bundle of the folded units folded of direction pressurization, to strengthen the folding of folded part; With moveMoving cell, it makes presser unit advance and return along paper beam width direction. Presser unit is during propelling is mobileStart pressurization from precalculated position along paper beam width direction, and after paper Shu Yiduan, discharging pressurization. AddPress unit during returning to movement, to start pressurization from precalculated position, and through the paper bundle other end.
In paper processing apparatus, strengthen the folding method of paper bundle, this paper processing apparatus comprises folding unit,Its folded sheet bundle; Presser unit, it is along the paper bundle of the folded units folded of paper bundle thickness direction pressurizationFolded part, to strengthen the folding of folded part; And mobile unit, it makes presser unit along paper beam widthDirection advances and returns, and described method comprises: the first step, under earth pressure release state, will pressurize along a directionCell moving is near also pressurization paper bundle middle body; Second step, under the pressurized state of the first step along oneDirection moves presser unit, and after paper bundle, presser unit is stopped; The 3rd step, after second stepMake presser unit enter earth pressure release state, under earth pressure release state, along other direction, presser unit is moved toNear paper bundle middle body, and pressurization; With the 4th step, under the pressurized state of the 3rd step, make along other directionPresser unit moves, and after paper bundle, presser unit is stopped in presser unit.
Above and other object of the present invention, feature, advantage and technology and industrial significance will be by examining by reference to the accompanying drawingsWhen worry, read and below current detailed description of the preferred embodiment of the present invention is better understood.
Accompanying drawing summary
The System Construction of Fig. 1 example image treatment system, it comprises image forming apparatus and multiple according to the present inventionPaper processing apparatus described in embodiment;
Fig. 2 is the operation example figure of saddle stitching bookbinding equipment, and it is folding defeated that example paper bundle is transported to central authoritiesSend the state in path;
Fig. 3 is the operation example figure of saddle stitching bookbinding equipment, and example paper bundle is by the state of saddle stitching;
Fig. 4 is the operation example figure of saddle stitching bookbinding equipment, and it is folding that example paper bundle has moved to central authoritiesThe state of position;
Fig. 5 is the operation example figure of saddle stitching bookbinding equipment, the state that example paper bundle is folded by central authorities;
Fig. 6 is the operation example figure of saddle stitching bookbinding equipment, and example is paper bundle quilt after the folding end of central authoritiesThe state of discharging;
Fig. 7 is the front view of major part, folding roller unit and the folding roller pair of strengthening of example;
Fig. 8 is the side view of major part, is wherein to watch Fig. 7 from left side;
The details of Fig. 9 example guiding elements;
Figure 10 is the zoomed-in view of the major part of Fig. 9, the unaltered state of example path conversion pawl;
Figure 11 is the zoomed-in view of the major part of Fig. 9, the state that example the first path conversion pawl has changed;
Figure 12 is operation example figure, the folding original state that strengthens operation of example;
Figure 13 is operation example figure, and example starts the state that the folding propelling that strengthens roller unit is moved;
Figure 14 is operation example figure, and the folding roller unit that strengthens of example arrives near the 3rd path of navigation intrafascicular centre of paperState;
Figure 15 is operation example figure, and example is folding to be strengthened roller unit and pushed away the first path conversion pawl and entered theThe state of two path of navigation;
Figure 16 is operation example figure, and the folding roller unit that strengthens of example is along move and add platen towards the direction of end simultaneouslyThe state of Zhang Shu;
Figure 17 is operation example figure, and the folding enhancing of example roller unit has moved to advance along the second path of navigation and movedThe state of final position;
Figure 18 is operation example figure, and the folding roller unit that strengthens of example is from advancing mobile final position to start to returnMobile state;
Figure 19 is operation example figure, and example is folding to be strengthened roller unit and started to return and move and arrives the 6th and guide roadThe state in footpath;
Figure 20 is operation example figure, and example is folding strengthens that roller unit has arrived the 6th path of navigation and from earth pressure releaseState-transition is the state of pressurized state;
Figure 21 is operation example figure, and the folding roller unit that strengthens of example has entered the 5th path of navigation and realized completelyThe state of pressurized state; With
Figure 22 is operation example figure, and the folding roller unit that strengthens of example moves and returns initially along the 5th path of navigationThe state of position.
Preferred embodiment describes in detail
The invention provides the following step:
(1) under earth pressure release state, make the folding roller that strengthens move near paper bundle middle body, then to paperOpen bundle pressurization;
(2) folding strengthen roller under pressurized state along paper beam width direction moved and pass through paper bundlePut the folding roller that strengthens is stopped;
(3) will fold enhancing roller and again be arranged under earth pressure release state, and make the folding roller that strengthens move to paper bundleNear middle body, then to paper bundle pressurization, and folding strengthen roller under pressurized state along paper beamwidthThe position that degree direction moved and passed through paper bundle stops the folding roller that strengthens; With
(4) as in step (1) in (3), with respect to paper bundle make roller to advance and return, and advanceMove and return the folding half paper beam width that reaches of mobile each middle enhancing paper bundle.
Hereinafter with reference accompanying drawing is described embodiments of the present invention.
The System Construction of Fig. 1 example image treatment system, it comprises image forming apparatus and multiple according to this enforcementPaper processing apparatus described in mode. In this embodiment, the first and second sheet post-processing apparatus 1 and 2Be linked in sequence with this in image forming apparatus PR follow-up phase.
The first sheet post-processing apparatus 1 has paper bundle and forms function: from image forming apparatus PR Reiceiver sheet one by one, sequence stack and alignment paper, and in stacking portion, form paper bundle. The first sheet post-processing apparatus 1In follow-up phase by paper bundle discharge roller 10 by paper bundle discharged to the second sheet post-processing apparatus 2. The second paperEquipment for after-treatment 2 is saddle stitching bookbinding equipment, for receiving saddle stitching and central authorities after the paper bundle of carryingFolded sheet bundle (in this manual, the second sheet post-processing apparatus is also referred to as saddle stitching bookbinding equipment).
Saddle stitching bookbinding equipment 2 will be bound book (paper bundle) in follow-up phase and be discharged according to present situation, or willBook drains into paper processing apparatus. The picture number of image forming apparatus PR based on input image data or scan imageAccording to form visual image in sheet-shaped recording medium. For example, image forming apparatus PR is corresponding to duplicator, printingMachine, facsimile machine, there is wherein digital MFP or the analog of at least two kinds of functions. Image forming apparatus PR shouldAs electrophotographic method or droplet discharge method, and can adopt any image forming method with known method.
In the accompanying drawings, saddle stitching bookbinding equipment 2 comprises that entrance transport path 241, paper pass through transport path242 fold transport path 243 with central authorities. In the upstream portion of sheet transport direction upper inlet transport path 241Provide entrance roller 201, the paper bundle of alignment is defeated by the paper bundle discharge roller 10 of the first sheet post-processing apparatus 1Deliver in equipment. In the following description, sheet transport direction upstream and sheet transport direction downstream are divided hereinafterBe not called upstream and downstream for short.
Branch's pawl 202 is provided at entrance roller 201 downstreams of entrance transport path 241. This branch's pawl 202 existsIn accompanying drawing, install with horizontal direction, and make paper bundle throughput direction be divided into paper by transport path 242 and central authoritiesFolding transport path 243. Paper passes through transport path 242 from entrance transport path 241 horizontal-extendings, and rearThe continuous stage is by paper bundle guiding discharge tray or treatment facility---it is not by example. Paper bundle is by upper discharge roller203 by discharged to follow-up phase. The folding transport path 243 of central authorities extends downward vertically from branch's pawl 202, and by rightPaper Shu Jinhang saddle stitching and central authorities are folding.
The folding transport path 243 of central authorities comprises bundle conveying upper guide plate 207, for paper bundle is guided to for central authoritiesFolding folded sheet 215 tops; Carry bottom guide 208 with bundle, for paper bundle is guided to folded sheet 215 timesSide. Paper sheet delivery guide plate 207 comprises, from start, bundle carries top roll 205, tail end to clash into pawl (trailing-endHittingclaw) 221 carry lower roll 206 with bundle. Tail end shock pawl 221 is erected at the tail end of drive motorClash on pawl rotating band 222, CD-ROM drive motor is example not. Along with the reciprocating rotary operation of rotating band 222, tail end---describing after a while---clashes into (pressurization) paper to clash into pawl 221 towards removable fence (movablefence)Beam End end, thereby the operation of the paper bundle that aligns. When paper bundle is transfused to paper bundle raised with in carrying outWhen centre is folding, pawl 221 carries the folding transport path 243(dotted line among Fig. 1 of central authorities of upper guide plate 207 to show from bundleThe position of example) regain.
Reference symbol 294 represents that the tail end that clashes into the home position of pawl 221 for detection of tail end clashes into pawl HP sensingDevice, and detect that position shown in dotted line in Fig. 1 (position shown in solid line in Fig. 2) is as home position, at thisTail end clashes into pawl 221 to be regained from the folding transport path 243 of central authorities. Control tail end based on this home position and clash into pawl221。
Bundle carry bottom guide 208 comprise, from start, saddle stitching binder S1, saddle stitching are rushed paper fence 225With removable fence 210. It is to receive the paper bundle of carrying upper guide plate 207 to carry by bundle that bundle is carried bottom guide 208Guide plate, provide saddle stitching to rush paper fence to 225 along its width, and removable fence 210 be provided, withPaper bundle end abutment (is supported by its underpart) on its underpart, and removable fence 210 can vertically move.
Saddle stitching binder (stapler) S1 is the binder for binding the intrafascicular centre of paper part. Removable gridHurdle 210 vertical sliding under the state of its support paper bundle end is moving. Along with the intrafascicular centre of paper and saddle stitching binderS1 relative positioning, carries out forwarding, i.e. saddle stitching in this position. Removable fence 210 is by removable gridHurdle driving mechanism 210a supports, and can move from superposed removable fence HP sensor 292 positionsTo the extreme lower position in accompanying drawing. For the mobile range of the removable fence 210 of paper bundle end abutment, reallyProtect stroke (stroke) and can process the full-size that can process from saddle stitching bookbinding equipment 2 to minimumThe size of size. For example, utilize rack and pinion mechanism as removable fence driving mechanism 210a.
Carry upper guide plate 207 and bundle to carry between bottom guide 208 at bundle, that is, and on the folding road of carrying of about central authoritiesFootpath 243 centre, provide folded sheet 215, folding roller to 230, folding roller unit 260 and the lower discharge roller of strengthening231. Folding strengthen roller unit 260 have the folding roller of being arranged in to 230 and lower discharge roller 231 between ADF carryThe folding enhancing roller of above and below, path is to insert ADF transport path. Folded sheet 215 can be along level in accompanying drawingDirection moves back and forth, and in its folding roller Dui230Jia district, folding operation direction location, and ADF is carriedPath 244 is arranged on the extended line of this direction. Lower discharge roller 231 is provided at ADF transport path 244Downstream, by folding paper bundle discharged to follow-up phase.
Carry upper guide plate 207 lower ends at bundle, provide paper bundle detecting sensor 291, for detection of being transported to central authoritiesIn folding the transport path 243 and end of the paper bundle of the central folding position of process. At ADF transport path 244,Provide folded part through sensor 293, for detection of the end of the folding paper bundle of central authorities and identification paper bundleProcess.
In general, in the saddle stitching bookbinding equipment 2 of configuration as shown in Figure 1, as Fig. 2 to Fig. 6Shown in operation example figure, carry out saddle stitching and central folding operation. In other words, if at guidance panel---notExample---above select saddle stitching and central authorities folding,, in image forming apparatus PR, select saddle stitching and central authoritiesFolding paper bundle is directed to the folding transport path 243 of central authorities by the counterclockwise bias operation of branch's pawl 202. PointPropping up pawl 202 is driven by electromagnet (solenoid). Alternatively, available motor drives and replaces electromagnet.
The paper bundle SB being transported in the folding transport path 243 of central authorities carries top roll by entrance roller 201 and bundle205 are carried downwards along the folding transport path 243 of central authorities, confirm paper bundle in paper bundle detecting sensor 291After SB warp, paper bundle SB carries lower roll 206 to be transported to paper bundle SB end abutment in removable by bundlePosition on fence 210, as shown in Figure 2. In the case, removable fence 210 depends on from imageThe paper size information of forming device PR---at this, the dimension information of each paper bundle SB on throughput direction---in different stop position preparations. In Fig. 2, bundle carries lower roll 206Jia district to clamp paper bundle SB, andAnd tail end clashes into pawl 221 to be prepared in home position.
Under this state, bundle carries lower roll 206Jia district pressure to be released as shown in Figure 3 (direction of arrow a),Paper bundle end abutment is on removable fence 210, and paper bundle is stacking under state freely at tail end; SoAfter, tail end clashes into pawl 221 and is driven the tail end that clashes into paper bundle SB, so that paper bundle is finally on throughput directionAlignment (direction of arrow c).
Then, rush paper fence 225 by saddle stitching and carry out width (perpendicular to the direction of sheet transport direction)Alignment operation, and the alignment operation of clashing into pawl 221 and carry out throughput direction by removable fence 210 and tail end;Therefore, complete the alignment operation of paper bundle SB width and throughput direction. In the case, according to paper chiThe quantity information of very little information, the intrafascicular paper comprising of paper and paper bundle thickness information, will promote tail end and clash into pawl221 and the saddle stitching amount of rushing paper fence 225 change to optimum value, to align.
If paper bundle is very thick, the space of transport path is very little; Therefore, by an alignment operation, alignmentConventionally insufficient. In this case, increase the quantity of alignment number of times. Therefore, can realize good alignment shapeState. In addition, because number of paper is larger, longer in the time of Upstream stack paper, therefore under receivingThe time of expending before a paper bundle is longer. Thus, even if increase the quantity of alignment number of times, as system alsoDo not lose time; Therefore, can effectively realize favourable aligned condition. Therefore, also can be according to upstream process timeBetween control alignment number of times quantity.
The ready position of removable fence 210 is set to the saddle stitching position of paper bundle SB conventionally, with rideOrder the relative position of gutter pos of binder S1. This is because can enter in stacked position in the alignment of this positionLuggage is ordered, and removable fence 210 need not be moved to the saddle stitching position of paper bundle SB. Given this, pre-at thisStandby position, the attachment means (stitcher) of saddle stitching binder S1 at paper bundle SB middle body along arrow b sideTo being driven, and forwarding carries out between attachment means and clencher (clincher), thus saddle stitching paperBundle SB.
By locating removable fence 210 from the pulse control of removable fence HP sensor 292, and logicalCross the pulse control location tail end shock pawl 221 that clashes into pawl HP sensor 294 from tail end. Removable fence 210The positioning control of clashing into pawl 221 with tail end is implemented by the CPU of the control loop of saddle stitching bookbinding equipment 2,Not example of this control loop.
Carry exerting pressure in d/d situation of lower roll 206 at bundle, the paper bundle SB of saddle stitching under Fig. 3 state,Collaborative removable fence 210 moves up, and is transferred to the saddle stitching position (central authorities of paper bundle SB throughput directionPosition) towards the position of folded sheet 215, as shown in Figure 4. This position is also based on removable fence HP sensor292 detection position is controlled.
Along with paper bundle SB arrives position shown in Fig. 4, folded sheet 215 is along towards folding roller Dui230Jia districtDirection moves, as shown in Figure 5; Then, folded sheet 215 near the bookbinding part of bookbinding paper bundle SB with closelyBe adjacent to paper bundle SB like vertical direction upper, thereby push press from both sides paper bundle SB to district. Paper bundle SB is rolled overLamination 215 is released towards folding roller Dui30Jia district, makes paper bundle SB be pushed into the folding roller pair in rotation230Jia district. Folding roller is pushed into the paper bundle SB in folder district to 230 pressurizations and conveying. By this pressurization and defeatedSend operation, paper bundle SB is folding in central authorities, thereby forms the paper bundle SB temporarily having been bound. Fig. 5 exampleThe state that the folded roller Dui230Jia district, end of the folded part SB1 of paper bundle SB keeps and pressurizes.
Paper bundle SB in central doubling under the state of Fig. 5 is folded as paper bundle SB as shown in Figure 6Roller is to 230 conveyings, and paper bundle SB is kept side by side to follow-up phase by lower discharge roller 231. In the case,As long as folded part detects paper bundle SB tail end, folded sheet 215 and removable fence through sensor 293210 just return to home position separately, and bundle carries lower roll 206 to return to pressurized state; Therefore, folded sheet215, removable fence 210 and bundle carry lower roll 206 to prepare arriving at of next paper bundle SB. If nextThe antiquarian of individual operation is identical with quantity, and removable fence 210 can move to position shown in Fig. 2 again,And in this position preparation. Note, its control also can be implemented by the CPU of control loop.
Fig. 7 is the front view of major part, folding roller unit and the folding roller pair of strengthening of example, and Fig. 8 is main portionThe side view dividing is wherein to watch Fig. 7 from left side. The folding roller unit 260 that strengthens is provided at folding roller to 230And ADF transport path 244 between lower discharge roller 231, and comprise cell moving mechanism 263, guiding elements264 and pressing mechanism 265. Cell moving mechanism 263 is by drive source and the driving mechanism of example do not make folding increasingStrong unit 260 with the depth direction in accompanying drawing (perpendicular to the direction of sheet transport direction) along guiding elements 264Move back and forth. Pressing mechanism 265 is by from upper and certainly descend the direction mechanism that paper bundle SB is pressurizeed that exerts pressure,And comprise folding roller/upper unit 261 and the folding roller/lower unit 262 that strengthens of strengthening.
Folding roller/the upper unit 261 that strengthens is supported by supporting member 265b, thereby can be with respect to cell moving mechanism263 move horizontally, the folding supporting member 265b that strengthens roller/lower unit 262 and be connected in pressing mechanism 265Lower end, thus irremovable. The folding upper folding enhancing roller 261a that strengthens roller/upper unit 261 can press and touch down foldingThe folded roller 262a that strengthens, pressure is put on paper bundle SB by the two, and wherein paper bundle SB inserts the folder between the twoQu Zhong. Pressure applies by the pressing spring 265c folding enhancing roller/upper unit 261 being pressurizeed with elastic force. ?Under pressurized state, carry out the movement of paper bundle SB width (the D1 direction in Fig. 8), as hereinafter described, then on folded part SB1, fold enhancing.
The details of Fig. 9 example guiding elements 264. Guiding elements 264 comprises path of navigation 270, for along paperThe folding roller unit 260 that strengthens of bundle SB width guiding. Path of navigation 270 comprises following six paths:
1) the first path of navigation 271, for the pressuring machine of guiding in earth pressure release state during propelling is mobileStructure 265;
2) the second path of navigation 272, for the pressing mechanism 265 of guiding in pressurized state during propelling is mobile;
3) the 3rd path of navigation 273, for making the state of pressing mechanism 265 release from pressure during propelling is mobileThe state of putting becomes pressurized state;
4) the 4th path of navigation 274, for the pressuring machine of guiding in earth pressure release state during returning to movementStructure 265;
5) the 5th path of navigation 275, for the pressing mechanism 265 of guiding in pressurized state during returning to movement;With
6) the 6th path of navigation 276, for making the state of pressing mechanism 265 release from pressure during returning to movementThe state of putting becomes pressurized state.
Figure 10 and Figure 11 are the zoomed-in views of the major part of Fig. 9. The first path conversion pawl 277 and the second tunnelFootpath conversion pawl 278 is provided at respectively the infall between the 3rd path of navigation 273 and the second path of navigation 272And the 6th infall between path of navigation 276 and the 5th path of navigation 275, as institute in Figure 10 and Figure 11Example. The first path conversion pawl 277 allows to change to the second path of navigation 272 from the 3rd path of navigation 273,And the second path conversion pawl 278 allows to change to the 5th path of navigation 275 from the 6th path of navigation 276, asShown in Figure 11. But, in the former from the second path of navigation 272 to the 3rd path of navigation 273 conversion and the latterImpossible from the 5th path of navigation 275 to the 6th path of navigation 276 conversions. In other words, do not allow contraryTo conversion. The arrow of Figure 11 represents the movement locus of guide finger 265a.
Pressing mechanism 265 moves along path of navigation 270, because the guide finger 265a of pressing mechanism 265 is with as followsForm is configured in path of navigation 270 movably: guide finger 265a is configured in path of navigation 270 looselyIn. In other words, path of navigation 270 serves as cam path, and guide finger 265a serves as cam follower, itsDuring moving along this cam path, change position.
Figure 12 to Figure 22 is the operation example of the folding folding enhancing operation that strengthens roller unit in this embodimentFigure.
Figure 12 example is delivered to and predetermined folding is strengthened position and in advance by the folding paper bundle SB of folding roller 230Fixed folding enhancing position stops and the folding state of roller unit 260 in ready position that strengthen. This is folding increasingThe initial position of strong operation.
The folding roller unit 260 that strengthens is along right in accompanying drawing (direction of arrow D2) from initial position (Figure 12)Start to advance (Figure 13). In the case, fold the pressing mechanism 265 strengthening in roller unit 260 by leadingEffect to pin 265a is moved along the path of navigation 270 of guiding elements 264. Just after operation starts, pressuring machineStructure 265 moves along the first path of navigation 271. In the case, folding strengthen roller to 261a and 262a in pressingPower release conditions. At this, earth pressure release state refers to the folding roller 261a of enhancing and 262a and paper bundle SB each otherThe state contacting but be under pressure hardly, or it is separated from one another to fold enhancing roller 261a and 262a and paper bundle SBState.
Strengthen roller unit 260 as long as folding and arrive near the 3rd path of navigation 273(figure of paper bundle SB central authorities14), pressing mechanism 265 just starts to decline along the 3rd path of navigation 273, and the folding roller unit 260 that strengthensPush away the first path conversion pawl 277 and enter second path of navigation 272(Figure 15). In the case, pressurizationMechanism 265 pressurizes to the folding roller/upper unit 261 that strengthens, and the folding roller/upper unit 261 that strengthens is adjacent toPaper bundle SB is upper, thereby realizes pressurized state.
In keeping pressurized state, the folding roller unit 260 that strengthens enters one along arrow D2 direction (Figure 16)Moved further. At this, because the second path conversion pawl 278 does not allow reverse transformation, the folding roller unit 260 that strengthensBe not directed to the 6th path of navigation 276, and move along the second path of navigation 272, through paper bundle SB, and arriveReach and advance mobile final position (Figure 17). Move to behind this position the guide finger 265a of pressing mechanism 265 upperBe transferred to the 4th path of navigation 274 tops from the second path of navigation 272. Thus, guide finger 265a is due to secondThe position limitation of path of navigation 272 upper surfaces is released; Therefore, upper folding enhancing roller 261a and lower folding enhancingRoller 262a separates, and realizes earth pressure release state.
Then, the folding roller unit 260 that strengthens starts to return to (Figure 18) by cell moving mechanism 263. ReturningDuring travelling backwards is moving, pressing mechanism 265 with left in accompanying drawing to (direction of arrow D3) along the 4th path of navigation 274Mobile. Along with pressing mechanism 265 moves arrival the 6th path of navigation 276(Figure 19 by this), guide finger 265aShape along the 6th path of navigation 276 is pushed down, and pressing mechanism 265 is from earth pressure release state-transitionFor pressurized state (Figure 20).
Then,, in the 5th path of navigation 275, realize abundant pressurized state. Folding strengthen roller unit 260 withArrow D3 direction continues mobile (Figure 21) along the 5th path of navigation 275, and through paper bundle SB(Figure 22).
By this way, by the folding reciprocating motion that strengthens roller unit 260, paper bundle SB is enhanced folding.In the case, the folding roller unit 260 that strengthens starts to strengthen and fold to paper bundle SB mono-side from middle body, soAfter, through one end SB2 of paper bundle SB. Thereafter, the folding roller unit 260 that strengthens is through the folding paper strengtheningBundle SB, starts to strengthen and fold to paper bundle opposite side from middle body, then, and another of process paper bundle SBEnd SB2.
By this operation, when starting to strengthen when folding or in the time from one end to the other side returning, the folding roller that strengthensTo the not end SB2 of side contacts paper bundle SB or pressure is put on to paper from paper bundle SB of 261a and 262aOpen the end SB2 of bundle SB. In other words, the folding roller unit 260 that strengthens is at process paper bundle outside endWhen the end SB2 of SB in earth pressure release state; Therefore, the end SB2 of paper bundle SB is not damaged. ThisStrengthen from carrying out to its end SB near paper bundle SB middle body folding during folding enhancing due to folding outward,The distance that folded enhancing roller unit 260 contacts paper bundle SB operation is shortened; Thus, be not easy accumulation and will cause foldingCurling of wrinkle or analogue. Therefore, when folded part (dorsal part) SB1 of paper bundle SB is enhanced when folding,Do not damage the end SB2 of paper bundle SB, and can suppress to cause at folded part SB1 or its owing to curling accumulationNear the wrinkle or curling that produce.
For prevent folding strengthen roller to 261a and 262a from end SB2 outside the end SB2 at paper bundle SBUpper operation, from the operation of Figure 12 to Figure 22, need to meet relation: L > La+Lb, wherein La is foldingThe folded distance that roller unit 260 moves during propelling is mobile under earth pressure release state on paper bundle, the Lb of strengtheningThe folding distance that roller unit 260 moves during returning to movement under earth pressure release state on paper bundle that strengthens,And L is the length (Figure 12 to Figure 14 and Figure 17 to Figure 19) of paper beam width direction.
Can expect, distance L a and Lb are approximate identical, and add the central authorities that are pressed in paper bundle SB widthNear part, start (Figure 16 and Figure 20).
In this embodiment, the folding roller unit 260 that strengthens comprises the folding roller/lower unit 262 that strengthens, so thatThe folding roller that strengthens folds enhancing to 261a and 262a; But, can omit the folding roller/lower unit 262 that strengthens,And can provide folding strengthen roller/upper unit 261 and having towards folding enhancing roller/upper unit of example notThe receiving member of 261 contact surface, to exert pressure betwixt.
Further, in the folding enhancing roller unit 260 in this embodiment, the folding roller/upper unit 261 that strengthensBe configured to move at above-below direction, and folding strengthen that roller/lower unit 262 is configured to can not be up and downDirection moves; But the folding roller/lower unit 262 that strengthens also can be configured to move at above-below direction. ?In this structure, top roll and lower roll 261a and 262a are operated symmetrically with respect to the folding position that strengthens, thereby thatThis contact or separation; Therefore, the folding position that strengthens becomes constant, and irrelevant with the thickness of paper bundle SB, thereforeCan further suppress to damage, as scrape damage.
According to this embodiment, can obtain following effect.
1) paper processing apparatus comprises: folded sheet 215, for folded sheet bundle SB; Folding roller is to 230; FoldingThe folded roller unit 260 that strengthens, comprises pressing mechanism 265, and it is along paper bundle SB thickness direction pressurization folded sheet bundleThe folded part SB1 of SB and enhancing paper bundle SB's is folding; With cell moving mechanism 263, for along paperBundle SB width makes the folding roller unit 260 that strengthens advance and return, and wherein the folding roller unit 260 that strengthens is pushing awayIn entering to move, start pressurization from precalculated position along paper bundle SB width, at one end SB2 through paper bundle SBAfter stop pressurization, then, returning to the other end that starts from precalculated position in mobile to pressurize and pass through paper bundle SBSB2. Therefore, when folding roller unit 260 side shifting from the end SB2 of paper bundle SB that strengthens, pressurization paperWhen bundle SB, the folding roller unit 260 that strengthens is conventionally in earth pressure release state; Therefore, the end of paper bundle SBSB2 does not damage in the folding enhancing process of paper bundle folded part SB1. Further, paper beam width directionWhole region do not strengthened foldingly by each, produce curling or folding owing to curling near being accumulated in folded part or itsWrinkle can be inhibited.
2) provide guiding elements 264, for regulating and controlling to fold to strengthen beginning and the release that roller unit 260 pressurizes, andAnd make the folding path of navigation 270 of roller unit 260 along guiding elements 264 that strengthen by cell moving mechanism 263Mobile. Therefore, can in moving process, start or discharge pressurization.
3) guiding elements 264 comprises the first and second path conversion pawls 277 and 278, for changing path. ByCan change by the first and second path conversion pawl 277 and 278 transduction pathway in pressurization and earth pressure release, canOnly by start and discharge the conversion operations of pressurization along path movement.
4) path of navigation 270 comprises the first to the 6th path of navigation 271 to 276, and it serves as cam path. Therefore,Can under settling position and timing, start or discharge pressurization.
5) meet relational expression L > La+Lb, wherein La is that the folding roller unit that strengthens is being pressed during propelling is mobileUnder power release conditions on paper bundle mobile distance, Lb is that the folding roller unit that strengthens is being pressed returning during mobileThe distance moving on paper bundle under power release conditions, and L is the length of paper bundle along paper beam width direction.Therefore, above-mentioned 1) effect can be obtained reliably.
6) be set to roughly the same and structure by distance L a and Lb and make to pressurize broad ways at paper bundleNear SB middle body, start, can obtain symmetrical shape. This can reduce production cost.
7) because the folding roller unit 260 that strengthens comprises the folding enhancing roller pair rotatably being supported by supporting member261a and 262a, folding enhancing can be undertaken by rotating roller 261a and 262a.
8) thus strengthen roller 261a and 262e can move at compression aspect by support member support due to folding,Top roll operates contact with each other symmetrically or separate with respect to the folding position that strengthens with lower roll 261a and 262a. Therefore,The folding position that strengthens becomes constant, and irrelevant with the thickness of paper bundle SB. Thus, can further suppress damage asScrape damage.
9) strengthen that roller unit 260 comprises the upper folding enhancing roller 261a that rotatably supports and by cloth due to foldingPut with the receiving member towards upper folding enhancing roller 261a, can omit lower folding enhancing roller 262a, this can be lowered intoThis.
Paper bundle in claim is corresponding to reference symbol SB, and folding unit is corresponding to folded sheet 215 and foldingRoller is to 230, and folded part is corresponding to reference symbol SB1, and presser unit is corresponding to the folding that comprises pressing mechanism 265The folded roller unit 260 that strengthens, mobile unit is corresponding to cell moving mechanism 263, and guidance unit is corresponding to guiding elements264, path is corresponding to path of navigation 270, and converting unit is changed pawls 277 and 278 corresponding to the first and second paths,The first path of navigation guides corresponding to reference symbol 272, the three corresponding to reference symbol 271, the second path of navigationPath corresponding to reference symbol 273, the four path of navigation corresponding to reference symbol 274, the five path of navigation correspondencesIn reference symbol 275, the six path of navigation, corresponding to reference symbol 276, supporting member is corresponding to reference symbol265b, paper processing apparatus is corresponding to saddle stitching bookbinding equipment (the second sheet post-processing apparatus) 2, andImage formation system is corresponding to comprise saddle stitching bookbinding equipment 2 and image forming apparatus at this embodimentThe system of PR.
Further, the invention is not restricted to above-mentioned embodiment, and can carry out multiple changing within the scope of the inventionMoving. In the technological thought of describing within the scope of claim, included all technology contents are all themes of the present invention.Embodiment is preferred embodiment, and those skilled in the art will expect many on the disclosed basis of this descriptionPlant substitute, correction, change or improvement, and these are included the skill of describing within the scope of the appended claimsWithin the scope of art.
According to embodiment, when the folded part of paper bundle is enhanced when folding, be accumulated in folding part owing to curlingNear the curling or wrinkle that divide or produce it can be suppressed, and do not damage paper bundle end.
Although described the present invention to carry out complete and clear and definite disclosing, appended power with reference to detailed description of the inventionProfit requires not to be limited to this, and is interpreted as comprising that falling into completely herein that those skilled in the art can expect proposesBasic instruction in all changes and optional structure.
Claims (21)
1. paper processing apparatus, comprising:
Folding unit, its folded sheet bundle;
Presser unit, it is along the described paper bundle thickness direction described paper having been folded by described folding unit that pressurizesThe folded part of bundle, to strengthen the folding of described folded part; With
Mobile unit, it makes described presser unit advance and return along described paper beam width direction, wherein:
Described presser unit starts pressurization along described paper beam width direction during propelling is mobile from precalculated position,And after described paper Shu Yiduan, discharging pressurization; With
Described presser unit starts pressurization during returning to movement from described precalculated position, and through described paper bundleThe other end.
2. paper processing apparatus according to claim 1, further comprises guidance unit, described guiding listBeginning and the release of the described presser unit pressurization of unit's regulation and control, wherein make described presser unit by described mobile unitAlong the path movement of described guidance unit.
3. paper processing apparatus according to claim 2, wherein:
Described guidance unit comprises converting unit, and described converting unit changes described path; With
The release of pressurization and pressurization is changed described path by described converting unit and is changed.
4. according to the paper processing apparatus described in claim 2 or 3, described path comprises:
The first path of navigation, in order to the described presser unit of guiding in earth pressure release state during propelling is mobile;
The second path of navigation, in order to the described presser unit of guiding in pressurized state during propelling is mobile;
The 3rd path of navigation, in order to make described presser unit become from described earth pressure release state during propelling is mobileFor described pressurized state;
The 4th path of navigation, in order to the described presser unit of guiding in earth pressure release state during returning to movement;
The 5th path of navigation, in order to the described presser unit of guiding in pressurized state during returning to movement; With
The 6th path of navigation, in order to make described presser unit become from described earth pressure release state during returning to movementFor described pressurized state.
5. according to the paper processing apparatus described in any one in claims 1 to 3, wherein meet and be related to L > La+Lb, wherein La be described presser unit advance mobile during under earth pressure release state at described paper Shu ShangyiMoving distance, Lb be described presser unit return mobile during under earth pressure release state on described paper bundleMobile distance, and L is the length of described paper bundle along described paper beam width direction.
6. paper processing apparatus according to claim 4, wherein meets and is related to L > La+Lb, wherein LaThe distance that described presser unit moves during propelling is mobile under earth pressure release state on described paper bundle,Lb is the distance that described presser unit moves during returning to movement under earth pressure release state on described paper bundleFrom, and L is the length of described paper bundle along described paper beam width direction.
7. according to the paper processing apparatus described in any one in claims 1 to 3, wherein said presser unit existsAdvance the distance L a and the described presser unit that during moving, under earth pressure release state, on described paper bundle, move to existReturn to the distance L b moving during moving roughly the same under earth pressure release state on described paper bundle, and addBe pressed near the beginning of middle body of described paper beam width direction.
8. paper processing apparatus according to claim 4, wherein said presser unit is during propelling is mobileDuring the distance L a moving on described paper bundle under earth pressure release state and described presser unit are being returned and are being movedUnder earth pressure release state, on described paper bundle, mobile distance L b is roughly the same, and adds and be pressed in described paperNear the middle body of beam width direction, start.
9. paper processing apparatus according to claim 5, wherein said distance L a and Lb are roughly the same,And start near adding the middle body that is pressed in described paper beam width direction.
10. paper processing apparatus according to claim 6, wherein said distance L a and Lb are roughly the same,And start near adding the middle body that is pressed in described paper beam width direction.
11. according to the paper processing apparatus described in any one in claims 1 to 3, wherein said presser unit bagDraw together backer roll pair, described backer roll is to rotatably being supported by supporting member.
12. paper processing apparatus according to claim 4, wherein said presser unit comprises backer roll pair,Described backer roll is to rotatably being supported by supporting member.
13. paper processing apparatus according to claim 5, wherein said presser unit comprises backer roll pair,Described backer roll is to rotatably being supported by supporting member.
14. paper processing apparatus according to claim 6, wherein said presser unit comprises backer roll pair,Described backer roll is to rotatably being supported by supporting member.
15. paper processing apparatus according to claim 7, wherein said presser unit comprises backer roll pair,Described backer roll is to rotatably being supported by supporting member.
16. paper processing apparatus according to claim 8, wherein said presser unit comprises backer roll pair,Described backer roll is to rotatably being supported by supporting member.
17. paper processing apparatus according to claim 9, wherein said presser unit comprises backer roll pair,Described backer roll is to rotatably being supported by supporting member.
18. paper processing apparatus according to claim 10, wherein said presser unit comprises backer roll pair,Described backer roll is to rotatably being supported by supporting member.
19. paper processing apparatus according to claim 11, wherein said backer roll is to by described support structurePart supports, and each roller can be moved along compression aspect.
20. image formation systems, comprise according to the paper processing apparatus described in any one in claim 1 to 19.
21. strengthen the folding method of paper bundle in paper processing apparatus, and described paper processing apparatus comprises folding singleUnit, its folding described paper bundle; Presser unit, it is folded by described along described paper bundle thickness direction pressurizationThe folded part of the described paper bundle of units folded, to strengthen the folding of described folded part; And mobile unit,It makes described presser unit advance and return along described paper beam width direction, and described method comprises:
The first step makes presser unit move to described paper bundle central portion along a direction under earth pressure release stateNear point, and pressurization;
Second step moves described presser unit along a described direction under the pressurized state of the described first step, andAfter described paper bundle, stopping described presser unit;
The 3rd step makes described presser unit enter earth pressure release state, at earth pressure release shape after described second stepUnder state, along other direction, described presser unit is moved near described paper bundle middle body, and pressurization; With
The 4th step moves described presser unit along described other direction under the pressurized state of described the 3rd step, andAfter described paper bundle, stop described presser unit in described presser unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2012204755 | 2012-09-18 | ||
| JP2012-204755 | 2012-09-18 |
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| CN201310421942.2A Active CN103662958B (en) | 2012-09-18 | 2013-09-16 | Paper processing apparatus, image formation system and the folding method of enhancing paper bundle |
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| US (1) | US9045310B2 (en) |
| EP (1) | EP2708484B1 (en) |
| JP (2) | JP5858017B2 (en) |
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| JP6458490B2 (en) * | 2014-12-25 | 2019-01-30 | 富士ゼロックス株式会社 | Folding device and post-processing device and processing device using the same |
| US9789660B2 (en) | 2015-01-23 | 2017-10-17 | Canon Finetech Nisca Inc. | Sheet processing device, image forming device provided with the same, and folded sheet pressing method |
| US9932199B2 (en) | 2015-03-09 | 2018-04-03 | Canon Finetech Nisca Inc. | Sheet processing device and image formation apparatus provided with the same |
| CN107021378B (en) | 2016-01-29 | 2021-08-03 | 佳能精技立志凯株式会社 | Sheet processing apparatus, image forming apparatus, and method of pressing fold of sheet |
| JP7271154B2 (en) * | 2018-12-10 | 2023-05-11 | キヤノンファインテックニスカ株式会社 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM INCLUDING THE SAME |
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Also Published As
| Publication number | Publication date |
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| JP2014076903A (en) | 2014-05-01 |
| EP2708484A1 (en) | 2014-03-19 |
| JP5994921B2 (en) | 2016-09-21 |
| JP2016040206A (en) | 2016-03-24 |
| US9045310B2 (en) | 2015-06-02 |
| JP5858017B2 (en) | 2016-02-10 |
| EP2708484B1 (en) | 2015-02-11 |
| US20140077436A1 (en) | 2014-03-20 |
| CN103662958A (en) | 2014-03-26 |
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